Polymer translocation out of confined environments

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2009
Major/Subject
Mcode
Degree programme
Language
en
Pages
021907/1-5
Series
Physical Review E, Volume 80, Issue 2
Abstract
We consider the dynamics of polymer translocation out of confined environments. Analytic scaling arguments lead to the prediction that the translocation time scales like τ∼Nβ+ν2DR1+(1−ν2D)/ν for translocation out of a planar confinement between two walls with separation R into a three-dimensional (3D) environment, and τ∼Nβ+1R for translocation out of two strips with separation R into a two-dimensional (2D) environment. Here, N is the chain length, ν and ν2D are the Flory exponents in 3D and 2D, and β is the scaling exponent of translocation velocity with N, whose value for the present choice of parameters is β≈0.8 based on Langevin dynamics simulations. These scaling exponents improve on earlier predictions.
Description
Keywords
polymers, translocation, polymer dynamics
Other note
Citation
Luo, Kaifu & Metzler, Ralf & Ala-Nissilä, Tapio & Ying, See-Chen. 2009. Polymer translocation out of confined environments. Physical Review E. Volume 80, Issue 2. P. 021907/1-5. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.80.021907.